GRX RD-RX825 Di2 Rear Derailleur - 12-Speed, Long Cage, With Clutch, For 2x, Black E-city / active the Terra Pro 2Bliss Ready

the Terra Pro 2Bliss Ready also features our GRIPTON compound that stays soft and supple when Mother Nature turns on the A/C

and highly breathable

switch-like feel is ideal for triathletes and time trialists who want to go fully wireless

Body Geometry touchpoints take the sting out of saddle time with their ergonomically designed

our Ride Science team knows the Tarmac SL8 is the fastest race bike ever made on the routes that matter—16

GRX RD-RX825 Di2 Rear Derailleur - 12-Speed, Long Cage, With Clutch, For 2x, Black E-city / active the Terra Pro 2Bliss ReadyShimano's GRX RX825 Di2 12 speed rear derailleur features a built in wireless connectivity unit and charging port, ensuring fast and reliable shifting for mixed terrain riding and easy recharging. Integrated Shadow RD+ technology prevents chain slap and ensures precise shifting even on rough terrain. Thanks to built in ON OFF switch, wheel removal is easy too. The RD RX825 is compatible with 11 34t and 11 36t 12 speed cassettes and supports Full or